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TJA1051_10

Description
High-speed CAN transceiver
File Size129KB,21 Pages
ManufacturerNXP
Websitehttps://www.nxp.com
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TJA1051_10 Overview

High-speed CAN transceiver

TJA1051
High-speed CAN transceiver
Rev. 5 — 29 December 2010
Product data sheet
1. General description
The TJA1051 is a high-speed CAN transceiver that provides an interface between a
Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus.
The transceiver is designed for high-speed (up to 1 Mbit/s) CAN applications in the
automotive industry, providing differential transmit and receive capability to (a
microcontroller with) a CAN protocol controller.
The TJA1051 belongs to the third generation of high-speed CAN transceivers from NXP
Semiconductors, offering significant improvements over first- and second-generation
devices such as the TJA1050. It offers improved ElectroMagnetic Compatibility (EMC)
and ElectroStatic Discharge (ESD) performance, and also features:
Ideal passive behavior to the CAN bus when the supply voltage is off
TJA1051T/3 and TJA1051TK/3 can be interfaced directly to microcontrollers with
supply voltages from 3 V to 5 V
These features make the TJA1051 an excellent choice for all types of HS-CAN networks,
in nodes that do not require a standby mode with wake-up capability via the bus.
2. Features and benefits
2.1 General
Fully ISO 11898-2 compliant
Suitable for 12 V and 24 V systems
Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
V
IO
input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3 V to 5 V
microcontrollers (available in SO8 and very small HVSON8 packages respectively)
EN input on TJA1051T/E allows the microcontroller to switch the transceiver to a very
low-current Off mode
2.2 Low-power management
Functional behavior predictable under all supply conditions
Transceiver disengages from the bus when not powered up (zero load)
2.3 Protection
High ElectroStatic Discharge (ESD) handling capability on the bus pins
Bus pins protected against transients in automotive environments
Transmit Data (TXD) dominant time-out function
Undervoltage detection on pins V
CC
and V
IO

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